---
title: 'Introduction'
description: 'OpenAPI specification for API Endpoints in Doku'
---
<CardGroup cols={2}>
  <Card
    title="API Keys"
    icon="key"
    href="/latest/api-reference/endpoint/api-keys/create"
  >
  </Card>
  <Card
    title="Connections API"
    icon="link"
    href="/latest/api-reference/endpoint/connections/create"
  >
  </Card>
</CardGroup>

## Authentication

All API endpoints are authenticated using Authetication Header.

```json
Authorization: <api-key>
```

<Info>
For your initial API call to `/api/keys` endpoint, Authorization header can be set to "".

Store the provided API key securely; it will be required to pass the generated and a valid API Key in Authorization header for subsequent API calls.
</Info>